E.Yu. Grachev - Ph. D. (Eng.), Associate Professor, Department «Industrial Electronics», Ryazan State Radio Engineering University E-mail: monopol_rus@mail.ru V.S. Gurov - Dr. Sc. (Eng.), Professor, Head of Department «Industrial Electronics», Rector of Ryazan State Radio Engineering University E-mail: gurovvs@mail.ru A.A. Skuntsev - Junior Research Scientist, Ryazan State Radio Engineering University E-mail: a_skuncev@mail.ru A.A. Trubitsyn - Dr. Sc. (Phys.-Math.), Professor, Department «Industrial Electronics», Ryazan State Radio Engineering University E-mail: assur@bk.ru

I.K. Belova1, E.O. Deryugina2, A.V. Dyomin3

1-3 Kaluga Branch of Bauman Moscow State Technical University (Kaluga, Russia)

1 belova.ik@bmstu.ru, 2 deryugina_eo@bmstu.ru, 3 dyominav@student.bmstu.ru